HK42FZ034 status code light blinks in pattern

Question 1

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My Carrier WeatherMaker 8000 furnace is blinking a red light 2 times pauses then blinks red 4 times with a pause between the 4 times

They are listed inside the front panel of the main unit.
LED CODE
EACH OF THE FOLLOWING STATUS CODES IS A TWO DIGIT NUMBER WITH THE FIRST
DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT BY
THE NUMBER OF LONG FLASHES.
STATUS

11 NO PREVIOUS CODE - Stored status code is erased automatically after 72
hours. On RED LED boards stored status codes can also be erased when power
(115 VAC or 24 VAC) to control is interrupted.
12 BLOWER ON AFTER POWER UP (115 VAC or 24 VAC) -Blower runs for 90
seconds, if unit is powered up during a call for heat (R-W closed) or R-W opens
during blower on-delay.
13 LIMIT CIRCUIT LOCKOUT - Lockout occurs if the limit or flame rollout switch is
open longer than 3 minutes.
- Control will auto reset after three hours. - Refer to #33.
14 IGNITION LOCKOUT - Control will auto-reset after three hours. Refer to #34.
21 GAS HEATING LOCKOUT - Control will NOT auto reset.
Check for: - Mis-wired gas valve -Defective control (valve relay)
22 ABNORMAL FLAME-PROVING SIGNAL - Flame is proved while gas valve is
de-energized. Inducer will run until fault is cleared. Check for:
- Leaky gas valve - Stuck-open gas valve
23 PRESSURE SWITCH DID NOT OPEN Check for:
- Obstructed pressure tubing. - Pressure switch stuck closed.
24 SECONDARY VOLTAGE FUSE IS OPEN Check for:
- Short circuit in secondary voltage (24VAC) wiring.
31 PRESSURE SWITCH DID NOT CLOSE OR REOPENED - If open longer than
five minutes, inducer shuts off for 15 minutes before retry. Check for:
- Excessive wind - Proper vent sizing - Defective inducer motor
- Low inducer voltage (115VAC) - Defective pressure switch
- Inadequate combustion air supply - Restricted vent
- Disconnected or obstructed pressure tubing
- Low inlet gas pressure (if LGPS used)
If it opens during blower on-delay period, blower will come on for the selected
blower off-delay.
33 LIMIT CIRCUIT FAULT - Indicates a limit, or flame rollout is open. Blower will
run for 4 minutes or until open switch remakes whichever is longer. If open
longer than 3 minutes, code changes to lockout #13. If open less than 3 minutes
status code #33 continues to flash until blower shuts off. Flame rollout switch
requires manual reset. Check for: - Restricted vent
- Proper vent sizing - Loose blower wheel - Excessive wind
- Dirty filter or restricted duct system.
- Defective blower motor or capacitor. - Defective switch or connections.
- Inadequate combustion air supply (Flame Roll-out Switch open).
34 IGNITION PROVING FAILURE - Control will try three more times before lockout
#14 occurs. If flame signal lost during blower on-delay period, blower will come
on for the selected blower off-delay. Check for: - Control ground continuity
- Flame sensor must not be grounded
- Oxide buildup on flame sensor (clean with fine steel wool).
- Proper flame sense microamps (.5 microamps D.C. min., 4.0 - 6.0 nominal).
- Gas valve defective or gas valve turned off - Manual valve shut-off
- Defective Hot Surface Ignitor
- Low inlet gas pressure
- Inadequate flame carryover or rough ignition
- Green/Yellow wire MUST be connected to furnace sheet metal
45 CONTROL CIRCUITRY LOCKOUT Auto-reset after one hour lockout due to;
- Gas valve relay stuck open - Flame sense circuit failure
- Software check error
Reset power to clear lockout. Replace control if status code repeats.
If status code recall is needed, briefly remove then reconnect one main limit wire to display
stored status code. On RED LED boards do not remove power or blower door before initiatingstatus code recall. After one status code recall is completed component test will occur.

here is a link copy and paste

https://www.fixya.com/support/t6287232-carrier_8000ts

.

Dec 22, 2022 • Televison & Video

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3answers

1993 goodman status light 4 times blinking

Witch blower is running, the inducer or the systems blower?
System blower could mean the the high limit is opening and shutting down the systems gas train, I would check this out first.

The other problem could be with the pressure switch for the gas train, it is supplied from the inducer motor, check to see if it is operating fully.

HSI boards do go from time to time, this sounds more like a system control problem.

Jan 24, 2008 • Goodman GMS90703BXA Heater

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1answer

Red light keeps flashing on 50e47-170 how do I fix

The red flash is flashing in a pattern, should be a diagram on the furnace panel that shows trouble shooting codes.... led on means you at least have power...

Feb 20, 2015 • Home Security

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1answer

Furnace quits with 4 blinking lights on panel

Most likely it's a sensor triggering the unit off. You need to have someone determine which lights are blinking (there is a code to them) and then find out what the code refers to. Could be a simple as dirty filters.

Mar 07, 2014 • Heating & Cooling

2helpful

1answer

Coleman echelon 9.T furnace will not turn on. Red light blinking

sounds like it is the pressure switch try jumping it out on some models you fool the heater in too working or see if the tubes are blocked , there should be some codes on the front panel or the fan panel

Apr 27, 2010 • Coleman Propane Forced Air Heater...

1helpful

2answers

My Carrier Infinity Hybrid Furnace/HeatPump is suddenly not responding. It's been working for a few years, but today it's acting dead. All the breakers are on. At the furnace (58MVB series 100) I hear a...

Turns out the condensation pump wasn't detecting that it was full, but the furnace was, and the furnace was disabling. A local heating contractor suggested that I jiggle the condensation pump. When I did that, the pump ran, and immediately the furnace came to life and the thermostats too. Now everything's fine. I just need to open up that pump and clean out whatever gunk is inhibiting proper function in there.

Jan 17, 2010 • Heating & Cooling

1helpful

1answer

Carrier Gas Furnace runs fine randomly stops blowing LEDs flash

That blinking light may be the diagnostic light. Count the blinks next time it fails. Carrier units will have two different blinks depicting the error code such as one blink followed by a pause than 3 blinks giving you an error code of 13. Then look at the wiring diagram, it will have an error code chart telling you where to start with your diagnosis. You already know that if you remove the cover it erases the error code, so look thru the small window first.

Nov 30, 2009 • Carrier XHB123D X/Y Series Heat/Cool Air...

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1answer

Furnace wont run

First of all when you flip the switch, it goes thru a startup sequence. THEN it turns on the Igniter (notice the red glow). Then the gas turns on.

Now at this point check the idiot light and it should be giving you a code of 34. That 34 (3 shorts 4 longs) says that there was a problem igniting the furnace. After it cycles thru at least 4 times and fails to ignite all the blowers, then is when you get a code 14 (1 short 3 longs)

NOTICE what's happening with ALL the burner Tubes each time it attempts to ignite. If only one or two are running....then this is your problem.
To fix all you do is take out the burner Tubes, look for debris, blow them out (blow from the front where all the jets are), and replace them in sequence from left to right (the tabs overlap).

Jan 23, 2009 • Carrier XHB123D X/Y Series Heat/Cool Air...

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1answer

I have a Carrier furnace. When I look at the furnace the red light is blinking. What does that mean?

it is a diagnostic led light count the short and long blinks. Write them down!!! than remove that panel with 5/16 inch nut driver and there is a diagnostic list on the inside.

Please give a rating it matters to fixya alot.

Jan 15, 2009 • Heating & Cooling

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1answer

Carrier Infinity from 1994 does not start

The Carrier Infinity has a control board that will flash out a pattern giving you a hint of what could be wrong. To find it, remove the cover off of the furnace and you will see a small round clear window. Look and count the blinks. Then compare that number to the diagnostic chart found on the back of the furnace access cover.

Let us know what the pattern is and we can help you more.

Oct 22, 2007 • Carrier 38CKC036 Air Conditioner

Question 2

Matt

Contributor 52 Answers
Posted on Apr 14, 2014

Matt

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Joined: Oct 03, 2012

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Located on the schematic on the inside of the furnace door should be a key for the blink sequence. 2 short blinks then 4 long ones would be a code 24 on that data plate

Answer 2 · 2/1/2009 12:00:00 AM

Anonymous

1 Answer
Posted on Feb 01, 2009

SOURCE: Furnace wont run

First of all when you flip the switch, it goes thru a startup sequence. THEN it turns on the Igniter (notice the red glow). Then the gas turns on.

Now at this point check the idiot light and it should be giving you a code of 34. That 34 (3 shorts 4 longs) says that there was a problem igniting the furnace. After it cycles thru at least 4 times and fails to ignite all the blowers, then is when you get a code 14 (1 short 3 longs)

NOTICE what's happening with ALL the burner Tubes each time it attempts to ignite. If only one or two are running....then this is your problem.
To fix all you do is take out the burner Tubes, look for debris, blow them out (blow from the front where all the jets are), and replace them in sequence from left to right (the tabs overlap).

Answer 3 · 2/1/2009 12:00:00 AM

Anonymous

1 Answer
Posted on Feb 01, 2009

SOURCE: Furnace wont run

First of all when you flip the switch, it goes thru a startup sequence. THEN it turns on the Igniter (notice the red glow). Then the gas turns on.

Now at this point check the idiot light and it should be giving you a code of 34. That 34 (3 shorts 4 longs) says that there was a problem igniting the furnace. After it cycles thru at least 4 times and fails to ignite all the blowers, then is when you get a code 14 (1 short 3 longs)

NOTICE what's happening with ALL the burner Tubes each time it attempts to ignite. If only one or two are running....then this is your problem.
To fix all you do is take out the burner Tubes, look for debris, blow them out (blow from the front where all the jets are), and replace them in sequence from left to right (the tabs overlap).

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